Malicious PDF — malware analysis report

Static analysis result for SHA-256 052cc101e6392826…

MALICIOUS

PDF

40.6 KB Created: 2021-04-28 19:43:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a6121bb13c2675c94a17e036fee53271 SHA-1: 21d5dd7d2c9abcbf2b4bd224c2d2645bce68464f SHA-256: 052cc101e63928265d98403f218c8124ef66264e5d052cc040254fb215f4824a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/gui-roblox-hack-game-hack PDF link annotation
    • https://lib.stie-yai.ac.id/repository/hack-stats-on-roblox-game.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-free-admin-in-your-own-roblox-place.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-logo-youtube-for-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/free-roblox-stuff-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-dragon-ball-rage-hack-2021.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/roblox-card-includes-free-virtual-item.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/my-roblox-girlfriend-cheated-on-me.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/como-hackear-juegos-de-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/can-you-make-free-clothes-roblox.pdfIn PDF document text
    • https://lib.stie-yai.ac.id/repository/how-to-get-any-free-robux.pdfIn PDF document text
    • https://freerobux.cyouIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004234.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4234 25208 bytes
SHA-256: 9c0e71924243d8803d96dd308fe2ee156aa3b05e0ca00e39b24c4cfae5e6e8cb
font_01_sfnt_off00007c51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C51 18444 bytes
SHA-256: e93891643be643b2b74c1cbf209daa6135542dc779b0433ede4074fb81496d9e

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